﻿using System;
using System.Text.RegularExpressions;

namespace KnowledgeSource
{
    public class Normalize : IKnowledgeSource
    {
        public string execute(string input)
        {
            if( input.Length != 0 )
            {
                var result = input.ToUpper();
                return result;
            }
            
            throw new ArgumentNullException("Normalize - input is empty string");

        }
    }
}
